Answer
Async operations may retain references via closures, causing memory leaks.
- Clear timers and intervals
- Abort unused fetch requests
- Remove event listeners
- Nullify long-lived references
Quick Answer
In async code, memory leaks occur when: closures in callbacks capture large objects and the callback is never called (orphaned Promises), Promise chains that never resolve or reject hold closures alive, cached resolved Promises reference large data, or async event listeners are never removed. Always resolve/reject Promises, clean up subscriptions, and avoid unbounded caches.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ